Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KW3JF callsign genealogy
Currently held by FREILER, WILLIAM J
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by KW3JF's current licensee, walking backwards.
- FREILER, WILLIAM Jcancelled 1997-10-15
Successor callsigns
Callsigns held now by people who previously held KW3JF.
No current licensee on record previously held this callsign.